timco-self-drilling-hex-screws-zinc-plated-55x50mm-100pk-select-deal

The Timco Self-Drilling Hex Screws provide a convenient solution for joining roofing sheets to light section steel without the need for pre-drilling. These high-quality screws feature a zinc finish for enhanced corrosion resistance, making them suitable for exterior applications.

Engineered with a No.3 self-drilling point, these screws can drill through steel up to 5.0mm thick, saving time on your installation projects. The fixed EPDM washer creates a watertight seal, preventing leaks and improving the durability of your roofing assembly.

Key Features:

• Case & core hardened carbon steel construction for superior strength
• Hex head design for secure fastening with standard tools
• EPDM washer included for weatherproof sealing
• No pre-drilling required - self-drilling point penetrates steel easily

Technical Specifications:

• Thread Diameter: 5.5mm
• Length: 50mm
• Head Type: Hex
• Washer Diameter: 11.00mm
• Point Type: Self-Drilling No.3
• Socket Size: 8mm
• Finish: Zinc
• Material: Case & Core Hardened Carbon Steel
• Effective Thread Length: 35mm
• Maximum Drilling Thickness: 5.0mm